ESP8266EX D1 Board, Arduino IDE Compatible with OTA Upload
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Prices updated: 13 Oct 2026
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About this product
An Arduino-compatible development board built around the ESP8266EX Wi-Fi chip, programmable from the Arduino IDE. It provides 11 digital I/O pins and 1 analog input, supports wireless over-the-air (OTA) code uploads, and has an onboard regulator that accepts up to 24 V and outputs 5 V at 1 A. It suits IoT and Wi-Fi projects.
Specifications
- Wi-Fi chip
- ESP8266EX
- Digital I/O pins
- 11
- Analog input
- 1
- Maximum input voltage
- 24 V
- Output
- 5 V, 1 A
- Upload method
- OTA (wireless)
Frequently asked questions
Can I program it without a USB cable?
Yes. The listing says it supports OTA wireless upload, so after an initial upload you can update code over Wi-Fi.
How is it powered?
The onboard regulator accepts up to 24 V input and provides 5 V at 1 A. Keep the external load within that output limit.
